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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-08-16 13:07:24 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-08-16 13:07:24 +0000 |
| commit | 1ea7355d85e316aadfd90468b3e808bb3dc95ee9 (patch) | |
| tree | 7d9c3cd8733553982b9d0a55e1ddff036a6d9b4c /os/ports/GCC/MSP430/pal_lld.c | |
| parent | 51e3bee83961243f5f0ba01537630f5a3d070c36 (diff) | |
| download | ChibiOS-1ea7355d85e316aadfd90468b3e808bb3dc95ee9.tar.gz ChibiOS-1ea7355d85e316aadfd90468b3e808bb3dc95ee9.tar.bz2 ChibiOS-1ea7355d85e316aadfd90468b3e808bb3dc95ee9.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1073 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/ports/GCC/MSP430/pal_lld.c')
| -rw-r--r-- | os/ports/GCC/MSP430/pal_lld.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/os/ports/GCC/MSP430/pal_lld.c b/os/ports/GCC/MSP430/pal_lld.c new file mode 100644 index 000000000..c5f59c2e9 --- /dev/null +++ b/os/ports/GCC/MSP430/pal_lld.c @@ -0,0 +1,115 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file ports/MSP430/pal_lld.c
+ * @brief MSP430 Digital I/O low level driver code
+ * @addtogroup MSP430_PAL
+ * @{
+ */
+
+#include <ch.h>
+#include <pal.h>
+
+/**
+ * @brief MSP430 I/O ports configuration.
+ *
+ * @param[in] config the MSP430 ports configuration
+ *
+ * @note The @p PxIFG, @p PxIE and @p PxSEL registers are cleared. @p PxOUT
+ * and @p PxDIR are configured as specified.
+ */
+void _pal_lld_init(const MSP430DIOConfig *config) {
+
+#if defined(__MSP430_HAS_PORT1__) || defined(__MSP430_HAS_PORT1_R__)
+ IOPORT_A->iop_full.ie.reg_p = 0;
+ IOPORT_A->iop_full.ifg.reg_p = 0;
+ IOPORT_A->iop_full.sel.reg_p = 0;
+ IOPORT_A->iop_common.out = config->P1Data.out;
+ IOPORT_A->iop_common.dir = config->P1Data.dir;
+#endif
+
+#if defined(__MSP430_HAS_PORT2__) || defined(__MSP430_HAS_PORT2_R__)
+ IOPORT_B->iop_full.ie.reg_p = 0;
+ IOPORT_B->iop_full.ifg.reg_p = 0;
+ IOPORT_B->iop_full.sel.reg_p = 0;
+ IOPORT_B->iop_common.out = config->P2Data.out;
+ IOPORT_B->iop_common.dir = config->P2Data.dir;
+#endif
+
+#if defined(__MSP430_HAS_PORT3__) || defined(__MSP430_HAS_PORT3_R__)
+ IOPORT_C->iop_simple.sel.reg_p = 0;
+ IOPORT_C->iop_common.out = config->P3Data.out;
+ IOPORT_C->iop_common.dir = config->P3Data.dir;
+#endif
+
+#if defined(__MSP430_HAS_PORT4__) || defined(__MSP430_HAS_PORT4_R__)
+ IOPORT_D->iop_simple.sel.reg_p = 0;
+ IOPORT_D->iop_common.out = config->P4Data.out;
+ IOPORT_D->iop_common.dir = config->P4Data.dir;
+#endif
+
+#if defined(__MSP430_HAS_PORT5__) || defined(__MSP430_HAS_PORT5_R__)
+ IOPORT_E->iop_simple.sel.reg_p = 0;
+ IOPORT_E->iop_common.out = config->P5Data.out;
+ IOPORT_E->iop_common.dir = config->P5Data.dir;
+#endif
+
+#if defined(__MSP430_HAS_PORT6__) || defined(__MSP430_HAS_PORT6_R__)
+ IOPORT_F->iop_simple.sel.reg_p = 0;
+ IOPORT_F->iop_common.out = config->P6Data.out;
+ IOPORT_F->iop_common.dir = config->P6Data.dir;
+#endif
+}
+
+/**
+ * @brief Pads mode setup.
+ * @details This function programs a pads group belonging to the same port
+ * with the specified mode.
+ *
+ * @param[in] port the port identifier
+ * @param[in] mask the group mask
+ * @param[in] mode the mode
+ *
+ * @note This function is not meant to be invoked directly by the application
+ * code.
+ * @note @p PAL_MODE_UNCONNECTED is implemented as output as recommended by
+ * the MSP430x1xx Family User's Guide. Unconnected pads are set to
+ * high logic state by default.
+ * @note This function does not alter the @p PxSEL registers. Alternate
+ * functions setup must be handled by device-specific code.
+ */
+void _pal_lld_setgroupmode(ioportid_t port,
+ ioportmask_t mask,
+ uint_fast8_t mode) {
+
+ switch (mode) {
+ case PAL_MODE_RESET:
+ case PAL_MODE_INPUT:
+ port->iop_common.dir.reg_p &= ~mask;
+ break;
+ case PAL_MODE_UNCONNECTED:
+ port->iop_common.out.reg_p |= mask;
+ case PAL_MODE_OUTPUT_PUSHPULL:
+ port->iop_common.dir.reg_p |= mask;
+ break;
+ }
+}
+
+/** @} */
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